Device for attaching loops to ropes or cords



(No Model.)

A. McDONALD.

DEVICE FOR ATTAOHING LOOPS T0 ROPES-OR 00888. No. 308,087. Patented Nov. 18, 1884.

. I Oz Yul. L i; D

B- I I V a T' F @NQ d .E' m l WITNESSES; INV'ENTOR.

lhuglapllcr, Washmgtnn. n. o,

ALEXANDER MCDONALD, OF IRVING PARK, ILLINOIS.

DEVICE FOR ATTAOHING LOOPS TO ROPES OR CORDS.

SPECIFICATION forming part of Letters Patent No. 308,087, dated November 18, 3.884.

Application filed March 13, 1884.

(No model.)

To aZZ whom it may concern.-

Be it known that I, ALEXANDER MCDONALD, of Irving Park, county of Cook, and State of Illinois, have invented new and useful Improvements in Devices for Fastening Loops to Ropes or Cords, of which the following is a specification, reference being had to the accompanying drawings.

This invention has for its object to provide a cheap and simple machine by which staples may be securely fastened to and clinched over ropes, straps, and the like, and is more especially adapted for forming loops in ropes or rolled leathersuch as halter straps and ropes. This object I accomplish by the means shown and illustrated in the accompanying drawings, in which- Figure 1 is a representation of a perspective of my machine, showing a pair of staples in position to receive a rope. Fig. 2 is a transverse central sectional view. Fig. 3is atrans verse sectional view of a loop of rope, showing a staple applied by my machine. Fig. 4 is an enlarged perspective detailview of the upper die; and Fig. 5 is a View of a portion of a halter-rope, showing the staples applied.

Referring by letter to the said drawings, A indicates the base-plate for supporting the various parts of my invention. This plate is provided on its upper face with a standard, 13, between which and a block, b, which is preferably formed integral with the said baseplate, is secured the lower die, F. The standard B is recessed transversely near its base to receive a movable block, a, which may be interposed between the said standard and the die F. The block or lug b is provided with transverse internally-threaded perforation to receive a locking-screw, 0, for securely holding the lower die in its seat.

To the upper end of the standard B is secured, by screws or other suitable fastening devices, a plate, f, which has a groove in its under face for the passage of the gage-bar J, which is loosely supported at its rear end in a bracket, L, secured to the rear face of the standard. Between the said rear face of the standard and the bracket L is an interspace, m, within which and around the shank of the gage-bar J is a spring, K, for throwing forward the said guide or gage bar. This guide bar is designed to engage the staples as they are inserted in the lower die, and has its engaging-head I beveled or inclined upwardly on its outer face, so thatthe sanie may be easily driven rearward when struck by theupper die in its descending movement.

The face of the lower die is concave longi tudinally to seat the rope, and is provided transversely with one or more shallow grooves to seat the staples.

D indicates the upper die, which is provided with a long vertical shank, E, which passes through a guide-aperture in the block 0. This shank E is also provided near its upper end with a pin, d, between which and the block 0 is interposed a retracting-spring, e. The upper die also has its face concave longitudinally for the reception of the rope, and grooved transversely to receive the ends of the staples. I prefer, however, to provide the face of the upper die with two parallel grooves or concavities having a central V-form division, t, to engage the meeting ends of the sta ples, and press them in between the branches of the rope, as shown in Fig. 3 of the drawings. In this construction the entire concave face of the die is not provided with grooves for the staples, the grooves extending only a portion of their width, beginning at the lower edge of the outer walls, as more fully shown in Fig. 4.

From the foregoing description the operationof my invention will be obvious. It will be seen that when the staples have been illserted in the lower die with their inner branches engaging the beveled head of the gage-bar J, and the rope-loop placed thereon in the concavity, by giving a blow of a hammer to the upper end of the shank of the die D it will be driven forcibly down upon the lower die, first engaging the beveled face of the gage-bar J and driving it rearwardly in its slide-bearing, and then engaging the vertically-extending branches of the staples, when it will force them down and securely clinchtheir free endsbetween the branches of the rope-loop. WVhen the power is removed from the said upper die, it will be immediately drawn up by the retracting-spring and the ICC gage-bar J let out to engage the next staples as they are inserted in the lower die.

'Having thus described my invention,,what I claim as new, and desire to secure byLetters Patent, is-

1. In a machinefor forming loops in ropes, the combination, with the base-plate, of the lower die having its face concave to seat the rope, and provided with grooves or depressions to seat the staples, and the upper die having its face provided with one or more concavities and grooves, substantially as specified.

2. The combination, with the lower die having its face provided with a longitudinal groove and transverse grooves, of the upper die having its engaging face provided with two longitudinal parallel grooves divided by a central projection, and provided with circular ALEXANDER MCDONALD.

WVitnesses:

F. M. CORNELL, ALEX. PORTER. 

